Vulnerability-Lookup

GHSA-M3WV-5MMV-W433

Vulnerability from github – Published: 2025-12-30 15:30 – Updated: 2025-12-30 15:30

Details

In the Linux kernel, the following vulnerability has been resolved:

mmc: alcor: fix return value check of mmc_add_host()

mmc_add_host() may return error, if we ignore its return value, the memory that allocated in mmc_alloc_host() will be leaked and it will lead a kernel crash because of deleting not added device in the remove path.

So fix this by checking the return value and calling mmc_free_host() in the error path.

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{
  "affected": [],
  "aliases": [
    "CVE-2022-50858"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-30T13:16:00Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmmc: alcor: fix return value check of mmc_add_host()\n\nmmc_add_host() may return error, if we ignore its return value, the memory\nthat allocated in mmc_alloc_host() will be leaked and it will lead a kernel\ncrash because of deleting not added device in the remove path.\n\nSo fix this by checking the return value and calling mmc_free_host() in the\nerror path.",
  "id": "GHSA-m3wv-5mmv-w433",
  "modified": "2025-12-30T15:30:28Z",
  "published": "2025-12-30T15:30:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50858"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/289c964fe182ce755044a6cd57698072e12ffa6f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/29c5b4da41f35108136d843c7432885c78cf8272"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/48dc06333d75f41c2ce9ba954bc3231324b45914"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4a6e5d0222804a3eaf2ea4cf893f412e7cf98cb2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/60fafcf2fb7ee9a4125dc9a86eeb9d490acf23e2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e93d1468f429475a753d6baa79b853b7ee5ef8c0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2022-50858 (GCVE-0-2022-50858)

Vulnerability from cvelistv5 – Published: 2025-12-30 12:15 – Updated: 2025-12-30 12:15

Title

mmc: alcor: fix return value check of mmc_add_host()

Summary

In the Linux kernel, the following vulnerability has been resolved: mmc: alcor: fix return value check of mmc_add_host() mmc_add_host() may return error, if we ignore its return value, the memory that allocated in mmc_alloc_host() will be leaked and it will lead a kernel crash because of deleting not added device in the remove path. So fix this by checking the return value and calling mmc_free_host() in the error path.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/289c964fe182ce755…
	https://git.kernel.org/stable/c/4a6e5d0222804a3ea…
	https://git.kernel.org/stable/c/29c5b4da41f351081…
	https://git.kernel.org/stable/c/48dc06333d75f41c2…
	https://git.kernel.org/stable/c/60fafcf2fb7ee9a41…
	https://git.kernel.org/stable/c/e93d1468f429475a7…

Impacted products

Vendor

Product

Version

Linux

Affected: c5413ad815a675b5c98a002353d8e96b44b164e9 , < 289c964fe182ce755044a6cd57698072e12ffa6f (git)
Affected: c5413ad815a675b5c98a002353d8e96b44b164e9 , < 4a6e5d0222804a3eaf2ea4cf893f412e7cf98cb2 (git)
Affected: c5413ad815a675b5c98a002353d8e96b44b164e9 , < 29c5b4da41f35108136d843c7432885c78cf8272 (git)
Affected: c5413ad815a675b5c98a002353d8e96b44b164e9 , < 48dc06333d75f41c2ce9ba954bc3231324b45914 (git)
Affected: c5413ad815a675b5c98a002353d8e96b44b164e9 , < 60fafcf2fb7ee9a4125dc9a86eeb9d490acf23e2 (git)
Affected: c5413ad815a675b5c98a002353d8e96b44b164e9 , < e93d1468f429475a753d6baa79b853b7ee5ef8c0 (git)

Linux

Affected: 5.0
Unaffected: 0 , < 5.0 (semver)
Unaffected: 5.4.229 , ≤ 5.4.* (semver)
Unaffected: 5.10.163 , ≤ 5.10.* (semver)
Unaffected: 5.15.86 , ≤ 5.15.* (semver)
Unaffected: 6.0.16 , ≤ 6.0.* (semver)
Unaffected: 6.1.2 , ≤ 6.1.* (semver)
Unaffected: 6.2 , ≤ * (original_commit_for_fix)

Show details on NVD website

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/mmc/host/alcor.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "289c964fe182ce755044a6cd57698072e12ffa6f",
              "status": "affected",
              "version": "c5413ad815a675b5c98a002353d8e96b44b164e9",
              "versionType": "git"
            },
            {
              "lessThan": "4a6e5d0222804a3eaf2ea4cf893f412e7cf98cb2",
              "status": "affected",
              "version": "c5413ad815a675b5c98a002353d8e96b44b164e9",
              "versionType": "git"
            },
            {
              "lessThan": "29c5b4da41f35108136d843c7432885c78cf8272",
              "status": "affected",
              "version": "c5413ad815a675b5c98a002353d8e96b44b164e9",
              "versionType": "git"
            },
            {
              "lessThan": "48dc06333d75f41c2ce9ba954bc3231324b45914",
              "status": "affected",
              "version": "c5413ad815a675b5c98a002353d8e96b44b164e9",
              "versionType": "git"
            },
            {
              "lessThan": "60fafcf2fb7ee9a4125dc9a86eeb9d490acf23e2",
              "status": "affected",
              "version": "c5413ad815a675b5c98a002353d8e96b44b164e9",
              "versionType": "git"
            },
            {
              "lessThan": "e93d1468f429475a753d6baa79b853b7ee5ef8c0",
              "status": "affected",
              "version": "c5413ad815a675b5c98a002353d8e96b44b164e9",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/mmc/host/alcor.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.0"
            },
            {
              "lessThan": "5.0",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.229",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.163",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.86",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
              "version": "6.0.16",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.229",
                  "versionStartIncluding": "5.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.163",
                  "versionStartIncluding": "5.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.86",
                  "versionStartIncluding": "5.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0.16",
                  "versionStartIncluding": "5.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.2",
                  "versionStartIncluding": "5.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.2",
                  "versionStartIncluding": "5.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmmc: alcor: fix return value check of mmc_add_host()\n\nmmc_add_host() may return error, if we ignore its return value, the memory\nthat allocated in mmc_alloc_host() will be leaked and it will lead a kernel\ncrash because of deleting not added device in the remove path.\n\nSo fix this by checking the return value and calling mmc_free_host() in the\nerror path."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-30T12:15:32.534Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/289c964fe182ce755044a6cd57698072e12ffa6f"
        },
        {
          "url": "https://git.kernel.org/stable/c/4a6e5d0222804a3eaf2ea4cf893f412e7cf98cb2"
        },
        {
          "url": "https://git.kernel.org/stable/c/29c5b4da41f35108136d843c7432885c78cf8272"
        },
        {
          "url": "https://git.kernel.org/stable/c/48dc06333d75f41c2ce9ba954bc3231324b45914"
        },
        {
          "url": "https://git.kernel.org/stable/c/60fafcf2fb7ee9a4125dc9a86eeb9d490acf23e2"
        },
        {
          "url": "https://git.kernel.org/stable/c/e93d1468f429475a753d6baa79b853b7ee5ef8c0"
        }
      ],
      "title": "mmc: alcor: fix return value check of mmc_add_host()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50858",
    "datePublished": "2025-12-30T12:15:32.534Z",
    "dateReserved": "2025-12-30T12:06:07.135Z",
    "dateUpdated": "2025-12-30T12:15:32.534Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-M3WV-5MMV-W433

CVE-2022-50858 (GCVE-0-2022-50858)

Tags

Sightings

Nomenclature